The reverse type is typical for the following legend: CONCORDIA EXERCITVVM / S C. for Hadrian (RIC 581a-e), not for Trajan.
However, the legend on this coin reads: CONCORDIA EXERC M IVM ME, and apairs to be tooled in my opinion.
The combination of the Trajan obverse and the tooled reverse typical for Hadrian indicates that this coin is very doubtfull